docs: clone with submodules and run submodule init in setup

Fixes #110 — workflow-builder and ai-agent live in git submodules
(packages/Vibe-Workflow, packages/Open-Poe-AI). A plain `git clone`
leaves those directories empty, so `next build` fails to resolve
the `ai-agent` and `workflow-builder` workspace imports.

- README: instruct `git clone --recurse-submodules` and document
  the `git submodule update --init --recursive` fallback.
- package.json: prepend submodule init to the `setup` script so
  `npm run setup` works on a fresh clone too.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.md

@@ -336,10 +336,13 @@ Every image you upload is saved locally (URL + thumbnail) so you never upload th
 ### Setup
 
 ```bash
-# Clone the repository
-git clone https://github.com/Anil-matcha/Open-Generative-AI.git
+# Clone the repository (with submodules — required for the workflow + agent packages)
+git clone --recurse-submodules https://github.com/Anil-matcha/Open-Generative-AI.git
 cd Open-Generative-AI
 
+# If you already cloned without --recurse-submodules, run this once:
+# git submodule update --init --recursive
+
 # Install dependencies (installs root + packages/studio workspace)
 npm install
 

package.json

@@ -17,7 +17,7 @@
     "build:workflow": "npm run build -w workflow-builder",
     "build:agent": "npm run build -w ai-agent",
     "build:packages": "npm run build:workflow && npm run build:agent && npm run build:studio",
-    "setup": "npm install && npm run build:packages",
+    "setup": "git submodule update --init --recursive && npm install && npm run build:packages",
     "vite:dev": "vite",
     "vite:build": "vite build",
     "electron:dev": "npm run vite:build && electron .",